1 - 20 of 42,242 Works in Sans (Undertale)

Navigation

Listing Works

  1. Tags
    Summary

    Valentine's day special except it starts on the 1st and ends on the 14th! 14 oneshots? Sending love to all with this special!

    Series
    Language:
    English
    Words:
    23,012
    Chapters:
    12/14
    Comments:
    4
    Kudos:
    7
    Bookmarks:
    1
    Hits:
    156
  2. Tags
    Summary

    Mind him, it isn't his fault Murder decided to be a bitch this early in the day.

    Killer—

    Doesn't answer.

    Water ripples against his knees as Killer moves, not just testing the water or rubbing away Sans’s legs but— he…joined in.

    The silence is even louder than the screaming of the dead.

    Or, 5 times Horror Sans noticed they're sharing bath times, just hanging out. And 1 time someone else familiar took the role.

    Language:
    English
    Words:
    4,227
    Chapters:
    1/1
    Hits:
    1
  3. Tags
    Summary

    This came to me while I was restocking the sauce containers at work earlier. I found it very amusing to myself. No character descriptions or anything. Gender and appearance are left to interpretation.

    Language:
    English
    Words:
    227
    Chapters:
    1/1
    Hits:
    3
  4. Tags
    Summary

    The leader of the human province and head mage, Cadoc, has no qualms in letting anyone willing to listen know that his third daughter—an unassuming girl with a deep blue Soul—has the most powerful magic known to mankind. She's able to perform feats that would make the entire monster kingdom tremble in fear. She may even have enough magical prowess to tip the scales of power between the already tentatively peaceful neighbors.

    Reluctant to violence, but hand forced with the protection of his recently unearthed populous, King Asgore levels the humans with an offer. Hand over this Blue mage to be paired with his Son, in a show of unity between their nations. Eager to breach the tall walls of their secret kingdom for information, Cadoc agrees.

    Unbeknownst to all, there's a third party at play, who's been intently watching the Head Mage's daughter as she spends her time in the meadow between their lands. She's nothing like everyone says she is... and soon he finds he's fallen for her—hard.

    When the Prince agrees to switch places with him for the courtship ritual, her secret admirer will have to win her heart, and Soul, sight unseen. But can they both keep pretending to be someone they're not?

    Series
    Language:
    English
    Words:
    88,754
    Chapters:
    15/?
    Comments:
    46
    Kudos:
    67
    Bookmarks:
    23
    Hits:
    1,898
  5. Tags
    Summary

    Trading her freedom away for the safety of another, this book loving woman finds herself in a strange castle, guarded by the castle’s inhabitants. Unbeknownst to her, these four have another fate in mind for her… they’d agreed to her deal in hopes that she could break their master’s "curse".

    With a heart as firmly guarded as their realm, the dark beast that reigns over the castle is resigned to a future alone and unloved. With a job as nasty as his self image, there’s no way this kind stranger could ever care to look upon him… right? Can a caring hand light a fire in this realm of permanent midnight?

    A tale as old as time, told in a new way.

    Language:
    English
    Words:
    122,889
    Chapters:
    33/?
    Comments:
    282
    Kudos:
    94
    Bookmarks:
    25
    Hits:
    2,929
  6. Tags
    Summary

    So, I don’t like how little stories there are of Ink having a mental breakdown. So I wrote him having a mental breakdown.

    Ink is laying on the ground. How did here. Why is he here?

    He should get up.

    He should go to work.

    Series
    Language:
    English
    Words:
    12,216
    Chapters:
    56/74
    Comments:
    172
    Kudos:
    81
    Bookmarks:
    6
    Hits:
    1,369
  7. Tags
    Summary

    After everything that happened passed, Cross found himself to be living with Ink in the doodle-sphere. Those days were peaceful, all until the two found themselves to be taking in two wandering kids. With their efforts to find who their parents are and trying to get them to soften up, it's almost like they're their parents!

    Language:
    English
    Words:
    4,645
    Chapters:
    1/4
    Kudos:
    1
    Hits:
    12
  8. Tags
    Summary

    Origins of the Multiverse follows your average neurodivergent teenager named Fury. Fury is gifted with magic from those outside of the Multiverse itself, she can shapeshift, travel the Multiverse, and much more. Follow her on her journey as she makes new friends and foes to find the true purpose of her magic and bring peace to the endless war in the Multiverse. Features: playful banter, cool fights, a few sad scenes, lore dialogue, and the power of friendship. This is a prequel to the Dragon of Legend series which will have its real works published her eventually.

    Series
    Language:
    English
    Words:
    9,011
    Chapters:
    8/?
    Comments:
    9
    Kudos:
    4
    Hits:
    31
  9. Tags
    Summary

    It was an easy job. Until Nightmare decided to entertain a creature disguised as what should be one of his deepest desires, that is.

    or

    When a Desire shows itself as Ink for the first time, Nightmare hesitates.

    Language:
    English
    Words:
    5,011
    Chapters:
    1/1
    Comments:
    1
    Kudos:
    12
    Bookmarks:
    2
    Hits:
    44
  10. Tags
    Summary

    Ignored, underestimated, and lonely. All you ever wanted was to be apart of your family, but you feel as though that will never be the case.

    This is inspired by DOUBT, an Undertale fic that was orphaned as of 04.28.21.
    The reader is an adopted child of Sans, Papyrus, and several of the popular alternate skeletons (Underswap, Underfell, and Swapfell). They often ignore the reader in favor of their second adopted child. The reader has stopped caring and has decided to take her life into her own hands. The reader plans to follow her dreams, with or without her family's help.

    ...
    ...
    But they want to help...

    Language:
    English
    Words:
    47,947
    Chapters:
    10/?
    Comments:
    94
    Kudos:
    358
    Bookmarks:
    94
    Hits:
    6,596
  11. Tags
    Summary

    This is my first fic, so please be gentle.

    You live in a city in the 1920s, and it is overrun with mobsters. Because of this, you're extremely cautious and like to stay informed about what is happening around you, but you come across a man with quite the... unique mindset for a mobster. You don't trust him at first, but he'll win you over eventually.
    He will make sure of it.

    This is short for now; I will be adding more later, as I'm currently sleep-deprived.

    Language:
    English
    Words:
    3,306
    Chapters:
    3/?
    Comments:
    3
    Kudos:
    18
    Bookmarks:
    2
    Hits:
    248
  12. Tags
    Summary

    December Holiday is a human living in Snowdin after she fell into the Underground years ago. She has a band with her best friends Chara and Asriel, as well as her sister, Noelle. She lives a fairly normal life, except for the fact that she's one of only two humans living in a place filled with monsters. She's always felt distant from her community in more ways than one, and everything turns even more upside down when she finds some mysterious things hidden in her own doctor's laboratory.

    This is a weird Human Dess Undertale AU that came to me in a vision, where she lives in the Underground and was adopted by the Holidays shortly after falling down. There's a lot of twists and turns in this one, as well as Chara Dreemurr content (my beloved), among many other things.

    Language:
    English
    Words:
    14,510
    Chapters:
    5/?
    Comments:
    2
    Kudos:
    5
    Bookmarks:
    3
    Hits:
    121
  13. Tags
    Summary

    29 days of short stories based on the Febuwhump 2026 prompts, written every day, on the day. Chapter Index inside with Prompts, Summaries, Major Characters & Warnings for each day

    DAY 16: Touch Aversion
    Mettaton
    Being corporeal was the dream of every ghost. The adjustment period could be rough though. It was just an adjustment period, wasn’t it?

    Language:
    English
    Words:
    19,689
    Chapters:
    17/30
    Comments:
    14
    Kudos:
    13
    Bookmarks:
    1
    Hits:
    189
  14. Tags
    Summary

    You're an engineer who works for Ebott's best research facility in one of the labs; your lifelong dream after finding a journal on Mount Ebott when you were a kid. When you aren't in the lab being smart, you're gathering materials at the abandoned doll factory for the machine you're trying to build.

    But one night, you meet a skeleton at the factory. Naturally, you lie about why you're there and say you're there to hunt ghosts. You befriend him and try to find a way to gather the materials while keeping up with that lie. But those lies catch up to you when you start to meet all the other skeletons.

    Edit: As of Chapter 29, all chapters have been edited and fixed slightly!

    Language:
    English
    Words:
    144,639
    Chapters:
    54/?
    Comments:
    1,062
    Kudos:
    1,777
    Bookmarks:
    382
    Hits:
    51,822
  15. Tags
    Summary

    A novelization of Undertale, as should be evident by the title.

    But... there's a little twist.

    Series
    Language:
    English
    Words:
    55,425
    Chapters:
    31/?
    Comments:
    22
    Kudos:
    37
    Bookmarks:
    4
    Hits:
    1,932
  16. Tags
    Summary

    Shattered had ruled over his multiverse for ages, having long since plunged the world into a neverending pool of toxic positivity that fed him well.

    But one day, he was betrayed-overthrown and banished to a different multiverse, never to return. Well, that was fine! He could just make a new empire! He-

    Wait, he just..did he just stab his counterpart-

    Oh. Oh, shoot, he'd just killed this world's Dream.

    These characters are not mine!

    Language:
    English
    Words:
    12,407
    Chapters:
    4/?
    Comments:
    7
    Kudos:
    38
    Bookmarks:
    6
    Hits:
    416
  17. Tags
    Summary

    Deep within the belly of the Omega Timeline rests the Underground.

    Not to be mistaken with the Underground— the forced sanctuary settled beneath mountain top: The setting for a story told many a time. No. Deep within the churning, hollow soul of the Omega Timeline rests the True Underground.

    And, nestled deep within the pit of this chasm, rests a fight club.

    Palette knows it as his second home.

    Or: Hidden deep within the Omega Timeline, there exists a fight club and black market. Years ago, a sick doctor created life from little more than abandoned magic. Gradient escapes. Palette waits. Dream is faced with echoes of his past. Ink claws for his identity. And, Nightmare steps into the light once more.

    Series
    Language:
    English
    Words:
    106,708
    Chapters:
    8/20
    Comments:
    82
    Kudos:
    76
    Bookmarks:
    19
    Hits:
    2,430
  18. Tags
    Summary

    The oldest dream was reading outside his multiverse as he observe he notice a world where he exist. Kim dokja was born with a dreaming quirk but coupn't prove it after the incident he got stuck in a coma as he open his eyes His voice trembeling coma out" is this the start of the circle?".

    Or the oldest dream may be from the my hero academia world and seeing other world he encontered his 'original one'

    Language:
    English
    Words:
    62,289
    Chapters:
    41/?
    Comments:
    96
    Kudos:
    254
    Bookmarks:
    48
    Hits:
    7,689
  19. Tags
    Summary

    Anti error leaves the anti void for the first time

    Frisk is misses their friend

    Shit happens

    (Some things in the tags may not have happened yet)

    Language:
    English
    Words:
    833
    Chapters:
    3/?
    Hits:
    14
  20. Tags
    Summary

    200 years ago, a dark force killed the two princes of the Underground. In the present day, Frisk falls into an underground where only Home is left still standing. Can she help bring hope to a nearly hopeless underground?

    Or is it already too late?

     

    Updates every 12 days!

    Language:
    English
    Words:
    145,928
    Chapters:
    67/?
    Comments:
    49
    Kudos:
    125
    Bookmarks:
    21
    Hits:
    5,014

Filters

Filter results:
Submit

Include

?
Include Ratings
Include Warnings
Include Categories
Include Fandoms
Include Characters
Include Relationships
Include Additional Tags

Exclude

?
Exclude Ratings
Exclude Warnings
Exclude Categories
Exclude Fandoms
Exclude Characters
Exclude Relationships
Exclude Additional Tags

More Options

Crossovers
Completion Status
Word Count
Date Updated
Submit

Clear Filters

Navigation